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In this study the Qing weather records “Clear and Rain Records” were used to reconstruct the 18thcentury summer (June-August) precipitation and monthly precipitation series of May, June, July, andAugust. The nature of these records and the techniquc of transforming them into numerical codes aredescribed. The procedure of converting these descriptive records into quantitative monthly precipitationand its scientific basis are given in detail. The reliability of the obtaind precipitation series is also ex-amined.
In this study the Qing weather records “Clear and Rain Records” were used to reconstruct the 18thcentury summer (June-August) precipitation and monthly precipitation series of May, June, July, and August. The nature of these records and the techniquc of transforming them into numerical codes aredescribed. The procedure of converting these descriptive records into quantitative monthly precipitation and its scientific basis are given in detail. The reliability of the yield precipitate series is also ex-amined.